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Phys Rev E Stat Nonlin Soft Matter Phys. 2003 Dec;68(6):061102. doi: 10.1103/PhysRevE.68.061102. Epub 2003 Dec 17.

Dynamics of the depletion zone at a finite-sized imperfect trap in two dimensions: photobleaching experiments and simulations.

Physical review. E, Statistical, nonlinear, and soft matter physics

Hailin Peng, Sung Hyun Park, Panos Argyrakis, Haim Taitelbaum, Raoul Kopelman

Affiliations

  1. Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, USA. [email protected]

PMID: 14754175 DOI: 10.1103/PhysRevE.68.061102

Abstract

The kinetics of the growth of depletion zones around a static trap in an effective two-dimensional geometry were studied experimentally with photobleaching of fluorescein dye by a focused laser beam. The phototrap served as an imperfect trap with a finite size. The growth of the depletion zone was monitored by the theta distance, defined as the distance from the trap to the point where the concentration of the reactants reaches a given arbitrary fraction theta (0

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